I disagree with you GN (which is not unusual).
Morale does not happen in isolation it is a collective entity, directly defined and controlled by company or Organisational culture.
To quote our CRM course, "culture is to organisations, what personality is to individuals"
As such the organisational culture and its philosophies has a direct impact on all the workforce and indeed organisational safety.
Measuring morale is not at all difficult, there are many means of doing so, the simplest being questionnaires. You may notice a complete lack of concern displayed by our management in the morale of its troops, this is manifested in the continual changes in T&C's. No input is sought at any REALISTIC level, just occasional lip service at best.